SeaShield
™
FX-225
Non-Shrink Underwater Grout
WHERE TO USE
• Concrete repairs in marine structures
• Underwater grouting applications
• Pile jacket repairs with the SeaShield Series
FX-70 structural repair and protection system
• Seawall repairs without dewatering
• Form and pour repairs above water
ASSESSMENT
DESCRIPTION
SeaShield FX-225 Non-Shrink Underwater Grout is a fl owable, high-strength, non-metallic, non-segregating grout designed with a
special anti-washout admixture, corrosion inhibitors, and polymers. SeaShield FX-225 can be pumped or tremied underwater to
grout SeaShield FX-70
™
and fi berglass pile jackets and as a structural repair mortar for formed applications above and
below water without dewatering.
FEATURES
• Flowable and pumpable
• No de-watering or cofferdams required
• Shrinkage compensated
• Bonds well to concrete
• May be extended with clean, washed
nominal
³⁄8
in. (9 mm) pea gravel
• Ready to use — simply add potable water
• Suitable for saltwater marine applications
PRODUCT DATA
All testing performed at 73˚F (23˚C) and 50% R.H.
Generic Description
Cementitious underwater grout
Packaging
55 lb. (24.9 kg) bag
3,000 lb. (1,134 kg) bulk bag
Product Yield ASTM C138
0.47 ft.
3
(0.013 m
3
) per 55 lb. (24.9 kg) bag
0.64 ft.
3
(0.018 m
3
) per 55 lb. (24.9 kg) bag extended
with 30 lb. (13.6 kg) of pea gravel
Working Time
30 minutes at 75°F (24°C)
Set Time
ASTM C191
Initial
2.5 hours minimum
Final
3.5 to 7 hours
Storage
Store dry between 40° and 95°F (4°–35°C)
Shelf Life
1 year in unopened packaging
VOC
0 g/L
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TECHNICAL INFORMATION
The data herein is based on laboratory testing under controlled conditions.
Variations may result from mixing methods and jobsite conditions. All testing
performed at 73°F (23°C) and 50% R.H., unless otherwise noted. Results were
performed using 134 fl . oz. (4.0 L) water per 55 lb. (25 kg) of SeaShield FX-225.
Splitting Tensile Strength
ASTM C496
28 days
600 psi
4.14 MPa
Density
ASTM C138
134 lb./ft.
3
2,146 kg/m
3
Compressive Strength
ASTM C109
24 hours
4,000 psi 27.5 MPa
3 days
5,000 psi 34.5 MPa
7 days
6,000 psi 41.3 MPa
28 days
7,000 psi 48.2 MPa
Height Change
ASTM C1090
Shows positive expansion
28 days
Less than 0.1% expansion
Volume Change
ASTM C827
Less than 0.5% expansion
Flexural Strength, 28 days
ASTM C348
1,200 psi 8.3 MPa
Freeze Thaw Resistance
ASTM C666, 300 cycles
100% durability factor
Bond Strength
ASTM C882M, hardened to
plastic grout
28 days 3,000 psi
Modulus of Elasticity
ASTM C469, 29 days
4.9 x 10
6
psi 33,780 MPa
Resistance to De-icing Salts
ASTM C672, 50 cycles
Excellent resistance – 0 grams loss
/ 0 visual rating
Bleeding
ASTM C232-C940
No bleeding
Length Change
ASTM C157
Wet Cured 0.03%
Dry Cured -0.18%
Flow Table
ASTM C1437 modifi ed per
ASTM C1107
75 – ideal for pump or tremie
applications underwater
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